Process using hydrocyclones

摘要

The present invention concerns a process for preparing of slurries containing suspended and dissolved particles and a solution as well as a slurry are provided onto a hydrocyclone equipment, disk centrifuge or nozzle centrifuge equipment. The dry matter concentration in the collected slurry is higher than the concentration of the mixture of the slurry and the solution as such. The use of a hydrocyclone stage for this specific purpose is disclosed as well.

主权项

1. A process for preparation of slurries containing suspended and dissolved particles, said process comprising the following steps:
a. providing a solution (A) of dissolved particles (A′), b. providing a slurry (B) of suspended particles (B′), c. introducing solution (A) and slurry (B) into a battery of hydrocyclone stages containing at least two hydrocyclone stages, wherein the solution (A) and the slurry (B) are separately introduced at different stages of the battery of hydrocyclone stages; and d. collecting a slurry (B″) containing at least a part of dissolved particles (A′) and at least a part of suspended particles (B′); wherein the collected slurry (B″) has a total dry matter concentration of the suspended particles (B′) and dissolved particles (A′) that is at least 3% higher than the combined dry matter concentration of solution (A) and slurry (B).